CentOS - Dec 2007 - SCSI controller suggestions for a 5.x server?

We are preparing for a new file server (Dell 2970) with an external disk
array with integrated RAID (raidking.com).  The array presents via Ultra 320
SCSI.  We are looking for anyone that has had experience or opinions on SCSI
cards without RAID that have a good performance working under CentOS 5.x.
Any suggestions/comments on the controllers with large storage especially at
or above 2tb would be appreciated.

Any help would be appretiated and any additional information that is needed
please ask.

Thank you,
Rob Lines
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If you are doing Ultra320 I have had good luck with Dell's PERC 4/DC, I have
since upgraded to SAS and PERC 5e.
 
-Ross
 


________________________________

	From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
Behalf Of Rob Lines
	Sent: Wednesday, December 05, 2007 12:33 PM
	To: centos at centos.org
	Subject: [CentOS] SCSI controller suggestions for a 5.x server?
	
	
	We are preparing for a new file server (Dell 2970) with an external disk array
with integrated RAID (raidking.com).  The array presents via Ultra 320 SCSI.  We
are looking for anyone that has had experience or opinions on SCSI cards without
RAID that have a good performance working under CentOS 5.x.  Any
suggestions/comments on the controllers with large storage especially at or
above 2tb would be appreciated.
	
	Any help would be appretiated and any additional information that is needed
please ask.
	
	Thank you,
	Rob Lines
	


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Rob Lines wrote:
> We are preparing for a new file server (Dell 2970) with an external 
> disk array with integrated RAID (raidking.com <http://raidking.com>).
> The array presents via Ultra 320 SCSI.  We are looking for anyone that 
> has had experience or opinions on SCSI cards without RAID that have a 
> good performance working under CentOS 5.x.  Any suggestions/comments 
> on the controllers with large storage especially at or above 2tb would 
> be appreciated.
the dell 2850's I've been bringing up have a dual channel LSI Logic 
ultra320 scsi controller built in, these work quite well.     I don't 
know offhand if they have an external scsi connector, however.   I'd 
suggest the equivalent LSI Logic SCSI card, I believe its the 53C10xx 
series, in PCI-X or PCI Express X4, whichever your server has...

someone else said PERC, those are Dell's raid controllers, obviously not 
what you want with an external SCSI RAID

I'm curious why you chose SCSI instead of SAS at this point in time?  
External SCSI cabling is expensive and trouble-prone.   _ALWAYS_ make 
sure _EVERYTHING_ is shut off completely before touching those external 
cables.     Don't cheap out on the cables, either.